Crosshead adjuster



1f. noGATcHoFF.

CROSSHEAD "A'DIUSTERl APPLICATION FILED MAY 28. 1921.

"Patented May I6, V1922@ 2 SHEETS-SHEET I.

T. yROGUTCHOFFl CROSSHEAD ADJUSTER.

APPLICATION FILED MAY 2s. 1921.

19416,@8., Patented May 16, 1922.

2 SHEETS--S-HEET 2.

THEODORE ROGATCH'OFF, OF BALTITEORE, MARYLAND.

GROSSI-man Specication'of Letters Patent.

HDJUSTER.

Patented May 16, 1922.

Application filed May 28, 1921. Serial No. 473,465.

To aZZ tu 7mm it may concern Be it known that I, Ti-rn'ononn RooAroHori, a citizen of Russia, residing at Baltimore, in the State 'of Maryland, have invented certain new 'and useful Improvements in Crosshe'ad Adjusters, of which the following is a specilication, reference being had therein to the accompanying drawings.

This invention relates to cross head 'adjusters and has for an `object to provide means for adjusting the shoe relative to the cross head ot the general ty-'pe disclosed' in myA Patent #1,303,728 and in my pending application Serial No. 350,091, 'tiled J anuary 8, 1920, although not limited to such specific construction, and has for an object to provide improved means 'for securing andr maintaining the adjustment which shall be reliable in use and convenient in operation.

A further obj ect of the invention is to provide a cross head and shoe movable relative to each other with a wedge member interposed between the said cross head and shoe. said wedge member being constructed with two legs joined together by a bridge piece, the legs being tapered, and with improved means for maintaining the wedge member in attained adjustment.

With these and other objects in view the invention comprises certain novel units, elements, parts, combinations. arrangements and functions, as disclosed in the drawing, together with mechanical equivalents thereof, as will be hereinafter more fully described and claimed.

In the drawings:

Figure 1 is a View ot a fragment or a conventional cross head of the general type mentioned, shown in side elevation with an adjusting mechanism applied thereto Figure 2 is a top plan view of the adjusting mechanism with the side plates ot' the cross head shown in section, and top plan view or' the shoe and guide;

Figure 3 is a transverse sectional view taken on line 3 3 of Figure 1, certain parts being broken away` which are otherwise shown in elevation;

Figure 4 is a perspective view of the wedge member alone;

Figure 5 is a view in edge elevation of the wedge member with a keeper of slightly different form from that shown at Figures 1 and 2;

Figure 6 is a perspective view of the keeper of the type shown at Figure 5, and

Figures 7, 8 and 9 are Vmodifications of the ratchet teeth or notches along the side of the wedge member and the co-acting andV the side plates or the cross head 10 and are' positioned in the grooves so that the shoe 11 is clamped between the plates of the 4cross head 10 when the nuts 15 on the bolts 14 are tightened. The structure thus disclosed does not `differ materially from the structure disclosed in said patent and application, land standing alone forms no essential partoi?l the present invention,

To fattain the required adjustment between the cross head 10 land the shoe 11 in both said patent and application, wedging members are provided. ln the present application a specific type or wedge is 'shown comprising the legs 16 formed as an integral structure by 'being connected by the Across bar or bridge 17. Such a bridge member with a bridge Vconnection is also disclosed in the said application 350,091, and the present invention is; directed to the means for maintaining an adjustment attained by driving the wedge longitudinally between the cross head 10 and shoe 11 in any approved manner, as by hammer strokes upon the bridge 17.

Two of the bolt-s 14, corresponding to the bolts 14 except being made somewhat longer, engage a keeper 18 which is provided with ratchet teeth 19 engaging the teeth of the rack 2O along the side ot one ot' the legs 16, as shown more particularly at Figures 2 and 4.

1t will be obwious that the bolts 14, 14 may be loosened a sufficient amount to permit the wedge member to be driven by hammer strokes upon the bridge piece 17, whereby the adjustment between the shoe 11 and the cross head is secured, whereupon all of said bolts 14 and 14 may be tightened, which will not only serve the purpose of clamping the shoe in such adjusted position, but will clamp the keeper 18 with the teeth in engagement with the rack 20.

Under some conditions it is` iound desirable to employ a keeper which will be used upon only one of the bolts 14 and such a keeper is shown at Figures 5 and 6, being provided with a flange 21 which hooks about the corner of the plate of the cross head l0, being provided with teeth 19 similar to the teeth 19 and similarly engaging the rack 2O of the wedge member.

At Figure 7 the teeth of the rack are shown as formed with sides inclined in both directions, as indicated at 22, and the keeper 23 has teeth -complementary thereto. At Figure 8 the rack comprises a plurality of notches 24C cut into the side of the wedge member, and the keeper 25 is provided with complementary teeth engaging the same. At Figure 9 teeth 26 are provided outstanding from the edge of the wedge member with a keeper 27 provided with notches;l complementary thereto. As shown at Figures 8 and 9 the notches and teeth are provided with substantially parallel walls, as distinguished from the inclined walls of the type shown at Figures 2 or 7. It is; to be understood, of course, that the invention is in no way limited to the specific type of teeth or notches which constitute the rack, or of the complementary keeper, it being only essential that a serrated edge and a keeper with a complementary face be provided, with means for clamping the two members iirmly together, when a wedge member has accomplished its fimction.

What I claim to be new is:

1. A cross head adjuster comprising in combination with a shoe and a cross head, a wedge member having substantially parallel legs with sides inclined to the same plane, a rack Jformed along the edge of one of said legs, and a keeper having a face com plementary to and engaging said rack.

2. A cross head adjuster comprising in combination with a cross head embodying a head member and a shoe, bolts extending through the head member and shoe and adapted to clamp the shoe in adjusted relation to the head, a wedge member having :substantially parallel legs connected by a bridge piece and having corresponding sides inclined to the same plane, a rack formed along one side of one of the legs, a keeper having a face complementary to the rack and provided with means for clamping into engagement with the rack by employing the clamping bolts.

3. A cross head adjuster comprising iny combination with spaced plates and a shoe movable between the plates, of bolts extending through the plates and the shoe and adapted to clamp the plates upon the shoe, a wedge member having substantially parallel legs;` spaced to correspond to the spacing of the plates and adapted to be inserted between the plates and the shoe, a rack formed along one edge of one of the legs, and a keeper mounted upon one of the bolts and havin@ a face complementary to the rack and adapted to be clamped into engagement therewith by the clamping action of the bolt. In testimony whereof I hereunto aiiix my signature in presence of two witnesses.

THEODORE ROGATCHOF F.

lVitnesses:

GEORGE WERETYK, MARY E. McALLrs'rnR. 

